SurvMax

Powerful calculator programs for land surveyors.

Built for the Texas TI-84 Plus. Tested in the field.

Closure calculator

Calculate the bearing & distance of a shape's missing side. Can also perform a double-missing-distance.

CLOSURE2

With easy conversion of degrees, minutes, and seconds (D.MMSS).

DMSCALC

Easily convert feet & inches into metres, and auto-calculate the sum of several lengths.

FICALC

Calculate arc length, chord length, radius, area, sagitta/bulge, and convert between them.

SURVARC

Quickly and easily "reduce" and convert instrument-relative levels into final levels.

REDLEVEL

Rotate one or more bearings by a specific amount, using degrees, minutes and seconds.

DMSROTAT

Calculate the area of a shape that's defined by bearings & distances.

POLYAREA

Easily convert chains & links into metres, and auto-calculate the sum of several lengths.

LINKS2M

More downloads and guides launching early 2025.